import cv2
import numpy as np

img = cv2.imread('C:\\Users\\Mengyang\\Desktop\\112.png')

#浅拷贝
img2 = img

#深拷贝
img3 = img.copy()

img[10:100,10:100] = [0,0,255]

cv2.imshow('img',img)
cv2.imshow('img2',img2)
cv2.imshow('img3',img3)

cv2.waitKey(0)